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Creating that extra room in your family home can really make a difference to how you live and work. At Grant Builders, we specialise in extensions and conversions and love creating that additional space that you crave! From rear extensions with aluminium bi-folding doors to front porches that create the perfect first impression of your home.


Converting that existing unused room in your home can be the most cost-effective way to create more space and transform how you live. Whether you are converting your underused garage to a well needed study or converting your loft into a double bedroom with en suite, we are confident that you will be impressed by the work completed by Grant Builders.


Renovating your home can be such a challenge, but with our help it can be a breeze! Knocking through walls can create the perfect opportunity for open plan living. We offer plastering and decorating services so that you can create the perfect finish for your home.


One of the most exciting experiences of our lives was building our own home in 2014. From working with the architect on the design to selecting the finishes, we enjoyed every moment! As builders ourselves, it was a dream fulfilled and we love to help others achieve their dreams in life. Having experienced building our own home first hand, we will not only approach your project from a builder’s perspective but also with you, the customer, in mind. We built our own house. Now let us help you build yours!


If creating an exciting space at the end of the garden, where you can escape the hustle and bustle of life is what you need, then a summerhouse is perfect. With some great designs to choose from and without the need for planning permission in most cases, you can create the office space or play room of your dreams!


Collaborating with some of the best kitchen design and trade counters means that we can provide quality products to your specifications. At Grant Builders, we can arrange the design and fit of your bespoke kitchen from start to finish.


From bright white to a sophisticated grey, we love to create the perfect bathroom where you can unwind and relax. Check out our gallery section to see some examples of the beautiful bathrooms we have created.

Call our friendly, family-run building service today to setup an appointment.
We can advise you on the best way forward for your project that’s in keeping with your budget expectations and your personal style.



“These guys are the best! The work is 100% perfect, the guys were considerate and polite, they tidied up at the end of every day. I now have my dream house thanks to Grant Builders. I would never use anyone else and so glad they were recommended to me.”

Sharon Bannister, 7th July 2017

“From the moment we met Leon, we felt we had made the right choice. He visited us on numerous occasions to go over the details of the conversion and what extras we had planned. We would not hesitate to use Grant Builders again for any future building work.”

Gavin Tuck, 15th May 2017

“Absolutely AMAZING. Just finished our 2 storey wrap around extension. Could not recommend more, we were very worried about choosing a builder but from the very beginning to way past the end Grant Builders have been fantastic. Cannot recommend enough.”

Heidi Hards, 16th March 2017

“Grant Builders did our loft conversion (bedroom and bathroom). We are very happy with the work done and would highly recommend. We expect to use them again in the future.”

Caroline Launder 
, 12th June 2015


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Call us today on 07852 428047 or 01245 422226
or simply fill out the form below

Grant Hill, Moulsham Thrift, CM2 8BP Chelmsford, Essex

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At Grant Builders we want to be as helpful as possible. We believe good communication is the key to a good building project. We have listed below some frequently asked question. If you can’t find the answer to your query please don’t hesitate to get in touch by calling us or filling out the form.

Our journey started with Leon establishing himself as a self-employed builder over 11 years ago, having worked in the building trade since the age of 15. As the work has grown, so have our team. In 2015, our company Grant Builders Ltd was established.
We are based in Chelmsford and cover the Essex area.
Firstly, find out whether you need planning permission. The planning portal is a great resource and will help you find the information you need with regards to planning and building regulations. You can also call the planning department of your local authority to make enquiries.

Finding an architect or local planning agent that you like and trust is important. At Grant Builders, we work hard to forge links with various planning agents, structural engineers and surveyors to create great working relationships. provides a comprehensive list of local planning agents that will be able to help you. Please contact us if you need a recommendation when appointing a planning agent, structural engineer and surveyor.

Building Control Services (Approved Inspectors) Ltd in Chelmsford provide an excellent service to ensure your building works are complying with building regulations. Please contact us on 01245 422226 before appointing building control to your build and we can explain the options to you.

You can contact us by telephone or email. If you have lots of information to send, feel free to email it and we will get back to you. If you wish to chat over the phone, we are always available to discuss your project.  
Grant Builders Ltd currently employs 6 experienced and qualified tradesmen and has a supporting team of subcontracted tradesmen who work regularly for the company. Our electrician is registered with the NICEIC and our plumber is CORGI registered. All of our workers are covered by our comprehensive public liability and employers liability insurance cover.
All of our quotes include a description of the works to be completed with our price inclusive of VAT. We try to create quotes that are as comprehensive as possible but if you do need any clarification, please do not hesitate to contact us.  
We usually provide a 12 month guarantee although this can vary. Please contact us for more details.
Once we have confirmation that you wish to proceed and have received your deposit, the quote and payment plan will form the contract between Grant Builders Ltd and you, the client.